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Yi Shuping
Liu Fei
School of Mechanical Engineering,
Chongqing University,
Chongqing 400044, China
Zhang Jin
Department of Materials Science
and Engineering,
Chongqing Institute of Technology,
Chongqing 400050, China
Ha Jin
Ren Guangsheng
School of Mechanical Engineering,
Chongqing University,
Chongqing 400044, China |
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STUDY ON JOINING PROCESS
FOR LAMINATED OBJECT
MANUFACTU-
RING USING METAL
AS
MODELING MATERIALS*
Abstract:
In
order to solve some key problems associated with the rapid
manufacturing of metallic functional part, a new technique using
vacuum solid-state pressure diffusion welding process to join
the metallic slice sheets is put forward. The following results
can be drawn from the experiments:
only 1% shrinkage happened in the stack direction and it came
from the regular system error. The atoms diffuse between joint
interfaces clearly and new grains formed meanwhile. The average
shear strength of welding zone is more than 100 MPa and micro
hardness of welding zone is almost the same as that of matrix.
It is shown from above results that the vacuum solid-state
pressure diffusion welding process is an available technique to
join metal slice sheets for the rapid manufacturing of metallic
functional parts.
Key words:
Laminated object manufacturing Metallic modeling materials
Vacuum solid-state pressure diffusion welding
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